Home / 305,229.69-421,243.61-177,902.55

Finding the Fourth Proportional to 305,229.69, 421,243.61 and 177,902.55

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Solution

The fourth proportional to 305,229.69, 421,243.61 and 177,902.55 is: 245,521.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,229.69 : 421,243.61 = 177,902.55 : x
  2. Step 2: Convert to fraction form
    305,229.69/421,243.61 = 177,902.55/x
  3. Step 3: Cross multiply
    305,229.69x = 421,243.61 × 177,902.55
  4. Step 4: Simplify right side
    305,229.69x = 74,940,311,500.69
  5. Step 5: Solve for x
    x = 74,940,311,500.69/305,229.69
  6. Step 6: Final answer
    x = 245,521.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.